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Finding the Fourth Proportional to 503,874,662.92, 695,645,311.28 and 447,965,658.34

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Solution

The fourth proportional to 503,874,662.92, 695,645,311.28 and 447,965,658.34 is: 618,457,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,874,662.92 : 695,645,311.28 = 447,965,658.34 : x
  2. Step 2: Convert to fraction form
    503,874,662.92/695,645,311.28 = 447,965,658.34/x
  3. Step 3: Cross multiply
    503,874,662.92x = 695,645,311.28 × 447,965,658.34
  4. Step 4: Simplify right side
    503,874,662.92x = 311,625,209,836,439,552
  5. Step 5: Solve for x
    x = 311,625,209,836,439,552/503,874,662.92
  6. Step 6: Final answer
    x = 618,457,788.75

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Double scale
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.